* mammoth20x: edit size of RightEncode key in Configurator
* physically arrange layout macro
Arranges the keycodes to resemble the assembled board.
* rename LAYOUT_default to LAYOUT
Includes "layout_aliases" tree in info.json for backwards compatibility.
* rules.mk touch-up
* convert tabs to spaces
* add line break before ENCODER_ENABLE (not included in QMK's template)
* readme.md touch-up
* remove zero-width space characters
* markdown fix for info paragraph
* update link text
GG
James Young